Improved machine for spinning- sheet-metal



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wayw/ ADRIAN RIS, 0F

Letters Patent No. 83,998, dated Warn non Y CONNECTI UT. number 'l 1868.7

INIPROVED MACHINE FOR SPINNING SHEET-METAL.

The Schedule referred to in these Letters Patent and making part of thesamex To'whom it may concern.

Be it known that I, ADRIAN RMS, of Waterbury, in the county of NewHaven, and State of Connecticut, have invented certain new and usefulImprovements in Machines for Spinning Sheet-Metal Ware; and I herebydeclare the following to be a full, clear, and exact description ot' thesame, reference being had to the accompanying drawings, in which-Figurel is a side ele Yation of a machine to which my improvements areapplied.

, -Figure 2 is a plan view of the same.

Figure 3 is a longitudinal vertical section, in the plane of the axis ofthe olamping-arbors, for holding the metal to be operated.

Figure 4 is a like section, through the sliding carriage or rest, forthe forming and working-rollers.

My invention relates to that class of machinery for forming sheet-metalware, in which the disk, of copper or other ductile 'metal to beoperated on, is held between two clamps, 'or a die and tace-plate, andis operated on by means of two rollers, between which the outer portionof the disk is placed. Motion is imparted either to the rollers or tothe clamps, so as to put the disk in rapid revolution, and a slidinginovoment is imparted to either the stock which holds the rollers, orthat supporting the clamp, so as to cause the ductile metal to be drawnout and shaped between the forming and working-rollers, this operationbeing technically termed spinning.

My invention more particularly rei'ers, iii-st, to the mechanism forclamping and holding the sheet-metal blank, ,the object being to providemeans whereby the metal may be readily secured and held in positionduring the operation of spinning, and the formed kettle or otherarticlemay be easily and expeditiously removed from the machine. And myinvention in this direction may be stated to consist,

First, in combining, with the two clamps or dios, between which themetal is held, the one being supported on a stationary arbor, and theother on an arbor capable or" sliding longitudinally, a plunger orsliding bolt, for forcing the movable clamp against the stationary one,and a toggle-jointed lever for operating the same, in the mannerhereinafter described.

Seoond,`in dividing the bearing or journal-box of the sliding arborlongitudinally, and hinging the two parts together, so that when the'kettle or other article is completed, the box may be opened, so as topermit the' removal ci the arbor and its clamp, and their withdrawalfrom within the finished kettle.

My invention refers, secondly, to the construction and arrangement ofthe slide-rest or carriage, for the working and thrilling-rollers, myobject being to arrange the rollers so that they may be adjusted withease and facility in the proper position, with respect both to eachother and the metal to be operated; and to combine the carriage or restwith other ordinary spring-machinery, in such manner that the rollersshall automatically' follow any pattern, so as to impart to theVsheet-metal the form desired.

To this end my invention consists,

` a movement generally parallel to the arbor ofthe clamps, ofslide-rests, for holding the rollers, capable of moving transversely oracross the carriage, and combined with adjusting-screws for regulatingthe position of the sliderests and their rollers, as hereinafter setforth.

Second, in the method of automatically spinning to a pattern, bycombining with the carriage, and hinged -or vibratory frame upon. whichit slides, a pattern, and guide-pin, attached to the carriage, forfollowing the pattern, and a weight or equivalent moans for actuatingthe li'ee end of the hinged frame, so, as to press the guide-pin at alltimes against the pattern.

rlhird, in combining with the vibratory or hinged carriage-trame andsliding carriage, a screw-sha t, for imparting motion to the latter,interposed between the carriage and its supporting-bod, and receivingmotion from the head-block, as hereinafter described.

bed, carriage, and screw-shaft, an adjustable frame, upon the head ofwhich said carriage-bed swings as described, the frame carrying a shaftand pulley, connected with the head-block, and communicating motion tothe screw-shaft by means of gearing, under the arrangement set forth.`

Fifth, in regulating the movement of the sliding carriage, by means ot amovable half nut, arrangedv in the carriage, so as to either engage withor bc disengaged from the screw-shaft, and combined with a spring orother suitable means for holding it in either 'position.

To ena-ble those skilled in thc art to understand and use my invention,I will now proceed to describe the manner in which the saine is or maybc carried into eli'ect, by retin-once to the accompanying drawings.

A. the ordinary pulley-shaft, supported in the usual bearings, andcarrying on its head the face-plate or die, il, which constitutes one ofthe clamps for holding the metal to be operated on. The other clamp ordie is represented by Il', mounted on the end of an arbor or shaft, (l,which is supported in a box, D, and is of such length as to be capableof a limited longitudinal-sliding movement, and thus allow the clamp Bto move up to or away from the stationary clamp B.

The box l) is divided into two parts, hinged together longitudinally,the holding-pin d, on one side, being removable, so that when thesheet-metal held between the clamps has been fully formed and fashionedinto the shape desired, 'the top of ythe box D can be turned back, ythusleaving the shaft or arbor G entirely free to be lifted out andwithdrawn, together with its clamp B', from the interior of the kettleor other *finished article.

First, in the employment, in the carriage, which has i Fourth, incombining, with said vibratory'carriage- In order to force the clamp B'up against the stationary clamp, I arrange a sleeve, D', in rear of andon the prolongation of the axis of arbor C, in which slides a plunger',C', actuated by a toggle-j ointed lever,

E, as seen in figs. 1 anti 3. By pulling forward the l lever-handle, theplunge will be driven forward. movingin turn the arbor C, against theend of which it pushes, until the two clamps are pressed firmlytogether. rlhe lever-handle, in this position, is held by means of ahinged rod, E', which fits in a jaw formed on the side of the lever, andis provided on its'screwthreaded end with a thumb-nut, l), which isscrewed up against the lever, so as to hold the latter in position. f Byloosening the thumb-nut, and throwing back its rod4 E, the lever may bepushed back, thus raising the arms of the toggle-jointed lever, anddrawing back the plunger hinged to the front arm.

` The clamp B can now be moved back, so to release the article held byit.

In order to shape the bottom of the kettle or otherarticle at the sametime that the sides are being spun, the face of the stationary die orclamp B is made concave, and the face of the clamp B is correspondinglyconvex, so that when the two are pressed together they will impart tothe bottom of the article held between them the'concavo-convex formdesired.

By the side of the clamps and arbors thus arranged,

is placed the carriage F, which carries the'formingrollers, and moves onways formed on the frame G, the latter resting on the bed-plate of themachine.

The general direction of the frame and carriage is nearly parallel withthe clamp-arbors, and when the article to be spun has straight sides,the frame may be stationary, or fixed in one position. But when objectsof irregular conformation are to be produced, it becomes necessary thatthe flame should have a vibratory motion, so as to allow the slidingcarriage to follow, in its movement, the desired pattern.

To this end, the front end of the frame is arranged to swing or vibrateupon the end of au adjustable plate,. H, the two ends being shaped asshown at c c', lig. 2, so as to form in some sort a ball-and-sockctjoint.

` The rear end of the frame is slotted at d, to receive a pin, e, which.serves to limit the vibrator-y movement of the frame; and upon the sideof the sliding carriage is mounted a guide-pin or finger, f, which bearsagainst the edge of an adjustable pattern-plate, I, attached byset-screws to the bed of the machine.

This guide-pin is held against the pattern with a yielding pressure, bymeans of a weight suspended from a cord, h, attached to the rear end ofthe frame G, as seen in figs. l and 2, in such manner that during thebackward movement of the sliding carriage the weight will cause theguide-pin, and consequently the sliding carriage and its rollers, tofollow closely the pattern, at the same time that it allows thenecessary vibration of the frame G.

Instead of the weight, a spring or other mechanical equivalent may beemployed for the same purpose,

In order to impart the requisite movement to the carriage F, I'interposebetween it and the frame a screw-shafa'K, mounted in the latter, androtated by means of a bevelled friction or gear-wheel, i, which itcarries.

This wheel engages with 'a horizontal bevelled friction or gear-wheel,j, mounted and revolving upon a vertical shaft, attached to 'tlie plateH, and the wheel j, in turn, engages with a gear or frictioii-wheel, k,mounted upon a horizontal shaft', supported in bearings on theI plate H,and" receiving motion from the shaft A, through the` intermediary of thepulleys l l, and band Z2, or other suitable means. The plate H may beeither adjustable or not.

In the drawings it is represented as adjustable by means of set-screwsheld in slots formed in the plate.

ThecarriageF can engage with the screw-shaft in any suitable manner; butin order that Imay check,

whenever desired, the movement of the carriage, with may be raised so asto be disengaged from thc screwshaft, being held in suoli position bymeans of a clamp or strap, n., which fits in a notch formed in its side,as shown in the drawings; this strap serving also to hold or press downthe block when it is lowered, so as to engage the screw-shaft.

Upon the sliding carriage F a-re mounted the rollers L'M, between whichthe sheet-metal is spun. In order to regulate the distance between therollers, for the purpose of spinning the metal thicker or thinner, asdesired, I attach the bearings iny which each is mounted to slides N O,capable of moving transversely or across the carriage, and adjusted bymeans of the thumbscrews I), mounted in the carriage, and engaging withtheir-respective slide.

The outside roller, L, is mounted between two upf' rights, o o, and theinside roller M is mounted so as to revolve on the end of a shaft orrod, It, the other end of which is held in a sleeve, S, by lmeans of asetscrew, p, on top.

In the rear end of the sleeve is an adjusting-screw, p', which projectsinto the sleeve, so as to bear against the end of the rod R. By turningthe screw to the right or left, the fastening-screw p beingjirst removedfrom contact with the rod, the rod R may be moved forward or backward,so as to'bring its roller, M, into proper position with respect to theroller L, and then, by tightening lthe screw p, the rod will beheldfirmly in the desired position.

The sleeve S is held by uprights lr r, supported on the slide O. Theuprights o o and o' lr may be attached directly to the slides, but, asin machinery of this class, the utmost nicety of adjustment is oftenindispensable, I prefer to attach the uprights to plates s t, pivotcd atone end to their respective slides, and slotted, as s hown in thedrawings, so as to receive setscrews, bywhich they are held. Bylooseningthese screws, the plates, and consequently the rollers whichthey carry, may be moved upon their pivots, and set at any desiredangle, as required by the nature of the work to be done, and then heldin such position by simply tightening the set-screws.

It will be seen from the foregoing that when the sliding carriage, bymeans of the bevelled gearing, is

put in motion, the spinning-rollers, by reason of the arrangement of thevibrating frame, weight, pattern, and guide-pin, will be causedautomatically to accurately follow the pattern, and to thus produce inan easyand simple manner an article of any desired conformation.

v The operation of spinning the metal is too well understood by thoseskilled in the art to which this invention pertains to requiredescription.

Having, therefore, described luy-invention, What I claim, and desire tosecure by Letters Pat- 1. The combination, with the metal-holding clampor dies, the one being fixed upon a stationary arbor, andthe other uponan arbor capable of sliding longitudinally, of aA plunger or slidingbolt, to force the movable clamp against the stationary one, and atogglejointed lever for operating said plunger, substantially as shownand set forth.

2. Dividing the bearing or journal-box of the sliding arborlongitudinally, and hingmg the two parts together, substantially in themanner and for the purposes set forth.

3. The combination of the sliding carriage F, the spinning-rollers,their'transverse-sliderests, and the screws for regulating the positionof `said rests, so as to adjust the spinning-rollers with relation bothto each other and to the inet-al to be operated on, substantially asherein shown and set forth.

4. rlhe arrangement of the plates upon which the spinning-rollers aremounted, the same being pivoted to and adjustable upon thetransverse-slide rests of the carriage F, as and for the purposesspecified.

5. The method of automatically spinning to a pattern, by the employment,in connection with the spinning-rollers, their sliding carriage, and thehinged or vibratory frame, on which said carriage moves, of a"-pattern-piate, a guide-pin for following said pattern, and a weight, orits equivalent, operating upon the free end of the vibrator;l frame, soas to hold at al1 times the guide-pin against the pattern, under thearrangement herein set forth.

The combination with the sliding carriage, its aetuating-serew shaft,and the vibratory frame on which it moves, of an adjustable plate, H, towhich the frame. is hingechas described, the said plate carrying apulley and shaft, connected with the driving-shaft of the machine, and'communicating motion to the screwshaft, substantially in the manner andby the means herein shown and set forth.

7. The movable half nut, in combination, Withthesliding-carriage, auditsactuating-screw shaft, under the. arrangement and for operationas setforth.

ln testimony whereof, I have signed my name to this specification,before two subscribing Witnesses.

ADRIAN RAIS.

Witnesses F. J. KINGSBURY, Y GEO. B. KERR. Y

